I. To determine the genotype of ATP-binding cassette, sub-family C (CFTR/MRP), member 2 (ABCC2) and solute carrier organic anion transporter family, member 1B3 (SLCO1B3) (and other genes potentially relevant in the pharmacokinetics and pharmacodynamics of docetaxel in the future) in Caucasian and African-American cancer patients enrolled on clinical trial CLB-9871.